I glanced briefly at the telerik solution for grouping a report by month by using a custom DateTime object. I then decided to just try adding a column to my select command that would would return the month/year as a string as in:
RIGHT('00' + CAST(DATEPART(mm, TestDate) AS varchar(2)), 2) + CAST(DATEPART(yyyy, TestDate) AS varchar(4))
example: 092008
I then grouped by this and seems to work fine.
RIGHT('00' + CAST(DATEPART(mm, TestDate) AS varchar(2)), 2) + CAST(DATEPART(yyyy, TestDate) AS varchar(4))
example: 092008
I then grouped by this and seems to work fine.